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- Voltage Portal FAQ's
Q: What size holes do your Voltage Portals mount in?
A: The R-T3 and R-3K mount in 30MM Push Button Hole just like our Voltage Indicators. The R-1A series Voltage Portals mount in ½” cutouts.
A: The R-T3 and R-3K mount in 30MM Push Button Hole just like our Voltage Indicators. The R-1A series Voltage Portals mount in ½” cutouts.